The same is true for the second half of the month effects (negative returns from September to November, see Table 8), which are reduced after including liquidity and order imbalance variables, but most of the interacted coefficients remain insignificant.
If any imbalances in baseline characteristics between groups are encountered, we will conduct ANCOVA (analysis of covariance) using these imbalanced variables as covariates and allocated group as fixed factor.
Sarcoidosis is rarely associated with other diseases, and most of these are characterized by a Th1/Th2 imbalance (common variable immunodeficiency, autoimmune diseases etc).
We investigate seasonal patterns for return, liquidity and order imbalance: Dummy variables for 14 days around the month, quarter and year end, denoted by (M_{d,t},) (Q_{d,t}) and (Y_{d,t}) respectively, are used to detect TOM effects.
Adjusted analyses were performed according to the slightly imbalanced baseline variable age and randomization stratification factors (sex and residence).
This difference in mortality rate was lost after adjustment for an imbalance in variables between the matched treatment groups (OR: 0.186; 95% confidence interval: 0.033 1.39; P=0.055).
Descriptive statistics will be used to summarise patient characteristics for the three participating hospitals and to check for any imbalance in variables between pre- and post-measurement groups.
It has long been expected that herbivores and omnivores would possess such mechanisms, based on the premise that these animals generally feed on nutritionally imbalanced and variable foods (Westoby 1978).
Treatment failure rates (odds ratio [OR], 1.139; P=0.308) and risk of in-hospital mortality were comparable (OR, 0.186; P=0.055) between vancomycin- and linezolid-treated patients following further adjustment for an imbalance in variables between the matched treatment groups.
Market-based settlement relates the variable imbalance tariffs to the actual system imbalance and thus any factor that strongly impacts on the system state like unpredictability.
